Buildstead Pro

Tiny House Studio — shell, layout, openings, and materials, with a 3D view built in.

Truss Builder — 25 truss forms across gable, vaulted, flat, and specialty families, with member lengths, spacing, counts, and dimensional-wood rendering.

Stair Builder — straight, L-turn, U-turn, winder, and spiral layouts, with solid cut-stringer 3D construction, planning checks, and a printable build sheet.

Plywood Bed — bed dimensions turned into a kerf-aware cut plan, material count, and cost comparison.

Solar Planner — daily loads, battery storage, panel sizing, and power-station fit.

Well + Heater — pump approaches, water-tower behavior, fixture demand, and heater sizing.

Water Tank v2.1 — tank-fitting, outlet-static, and outlet-flowing pressure, kept unit-safe across imperial and metric.

Every tool switches between imperial (feet, inches, gallons, psi, pounds) and metric (metres, litres, kPa, kilograms) without mixing units on screen. Every page opens in daylight mode with a dark-mode toggle. Extract the ZIP, open index.html, and the whole toolkit runs offline, including the bundled React, Babel, and Three.js files.

These are planning aids, not structural, plumbing, electrical, or permit certifications. Loads, pressures, materials, and code compliance still need a qualified local professional.

Instructions

1. Download and extract the full ZIP (don’t preview from inside the zip viewer on Android; extract first).

2. Open index.html in a current browser.

3. Pick a tool from the launcher, or open any apps/<tool>/index.html directly.